2. Make yourself a box with the longer boards handing over each side.
3. Once all your troughs (I made 5) are finished start drilling holes for drainage which you can use a 1/2 inch drill bit
4. Now start sanding your troughs with some sand paper to get things smooth
5. The best way to figure out how you are going to work is to lean 2 5 foot and 6 inch boards against the side of your house to see how high you want to build your troughs so you can start attaching them.
6. Measure and space out your troughs.
7. Now start screwing in each trough which is easier to do with everything sitting on its side.
8. If you really want to you can stain just the outside of your herb garden.
9. Enjoy!